A planet orbits a star in an elliptical orbit. At a particular instant the momentum of the planet is <-3.9 × 1029, -1.6 × 1029, 0> kg·m/s, and the force on the planet by the star is <-3.3 × 1022, -1.9 × 1023, 0> N. Find and . (Express your answers in vector form.)

Acommercial passenger jet can travel up to 970 km/hr at an altitude of 30,000 feet. at this speed, how long will it take the jet to travel 1,865 kilometers? a. 2.3 hrs b. 1.9 hrs c. 1.7 hrs d. 1.5 hrs

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.